Essays about: "alkalis"
Found 3 essays containing the word alkalis.
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1. Hydrolysis of waste activated sludge from pulp and paper mills : effect on dewatering properties and biogas potential by utilizing existing side streams
University essay from Linköpings universitet/Tema MiljöförändringAbstract : A big challenge within pulp and paper mills is the large quantities of waste activated sludge (WAS) that is produced during the wastewater treatment. The WAS is made up of biological cells and extra polymeric substances (EPS) and can bind a large amount of water causing difficulties to dewater the WAS. READ MORE
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2. Alkali Circulation in the Blast Furnace - Process Correlations and Counter Measures
University essay from Luleå tekniska universitet/Industriell miljö- och processteknikAbstract : In blast furnace ironmaking one major challenge is to control and measure the alkalis circulating and accumulating in the blast furnace (BF). Alkali enter the BF with the primary raw material and will form a cycle where it is first reduced to metal at the lower parts forming gas. READ MORE
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3. Proterozoic hydrothermal alteration and mineralization along the Protogine Zone in southern Sweden
University essay from Lunds universitet/Geologiska institutionenAbstract : Occurrences of high alumina rocks constituted by quartz, kyanite, rutile and Al-phosphates are spatially related with the Protogine Zone, a system of ductile and brittle deformation zones within the Proterozoic crust of southern Scandinavia. A hydrothermal origin has been proposed for high alumina rocks at Västanå, based on the chemistry of these rocks, while gradual transitions between magmatic rocks and high alumina rocks at Hökensås and Hålsjöberg suggest a similar origin. READ MORE